6 Dozen FD-SR #1 Reverse Tooth Pinless Flying Dutchman Scroll Saw Blades Six Dozen FD-SR #1 Flying Dutchman Blades (72 Blades) Width 0.026 - Thickness 0.01 - t.p.i. 13 - 7 Reverse Teeth Reverse Tooth Blades Cut on Down stroke and up stroke for a smoother cut Splinter Free Finish All these blades are 5 inches long and Pinless.